Anxiety, depression, and irritability can all be linked to what you're eating.
What to notice:
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Unexplained anxiety or feelings of dread
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Depressed mood
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Irritability or mood swings
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Feeling "off" emotionally without reason
Why it happens: Inflammation affects neurotransmitter function, and the gut produces about 95% of your body's serotonin.
8. Hormonal Imbalances
For women especially, gluten sensitivity can affect reproductive hormones.
What to notice:
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Irregular menstrual cycles
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Severe PMS
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Unexplained infertility
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Miscarriages
Why it happens: Chronic inflammation can disrupt the delicate balance of reproductive hormones.
9. Anemia and Nutrient Deficiencies
If you're eating well but your blood work shows deficiencies, your gut may not be absorbing nutrients properly.
What to notice:
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Iron-deficiency anemia (low ferritin)
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Vitamin B12 deficiency
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Vitamin D deficiency
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Unexplained weight loss
Why it happens: Inflammation in the small intestine (especially in celiac disease) damages the villi responsible for nutrient absorption.
10. Autoimmune Conditions
Having one autoimmune condition increases your risk of developing others.
What to notice:
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Hashimoto's thyroiditis
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Type 1 diabetes
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Rheumatoid arthritis
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Psoriasis
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Any other autoimmune diagnosis
Why it happens: There's a strong genetic link between celiac disease and other autoimmune conditions. If you have one, you're at higher risk for others.
The "Gluten Challenge" – Why You Shouldn't Self-Diagnose
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